采用GSM 模塊的遠程數(shù)據(jù)傳輸方案應(yīng)用日益廣泛。但是在便攜和移動設(shè)備應(yīng)用領(lǐng)域，供電電源輸出功率小，紋波噪聲大，瞬間負載電流大，有時會影響到GSM 模塊及系統(tǒng)工作的穩(wěn)定性。本文敘述了一種由5V/600mA 電源向瞬間大電流的TC35i GSM 模塊供電的低紋波噪聲供電設(shè)計方案。該方案已經(jīng)在工程中得到了實際應(yīng)用，表明該方案有效可靠。
關(guān)鍵詞：低紋波; 低壓差; GSM 模塊; 供電
Abstract: GSM modules are now widely adopted for remote data transmission. In the portable
and mobile application area, the limitation of power supply capacity, high level of ripple noise and huge transient current may damage the system stability. In this article, one 5V/600mA power supply solution designed for TC35i GSM module will be discussed, which has been applied in a project and proved to be reliable and effective.
Keywords: low ripple; low dropout voltage; GSM module; power supply